EB stands for electronic ballast. EBs and dimmable EBs are increasingly being used instead of conventional (CBs) or low-loss ballasts (LLBs). They save energy and make for a high degree of visual comfort. Other advantages: higher lamp luminous efficacy, flicker-free instant starting, longer lamp life, automatic disconnection of defective lamps. See also Energie Efficiency Index (EEI) for ballasts.